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Switching to synthetic oil on High mileage Altima
I have a 2005 Altima with the 2.5L engine. I am right at 122,000 miles and thinking about switching to the Mobil 1 High mileage synthetic oil 5W-30.
Here is the problem, my local Walmart does not carry 5W-30, only 10W-30.
Is it OK to use the regular Mobil 1 synthetic oil on a 122,000 mile engine? I currently do not have any leaks, but have heard that the small molecules in the synthetic oil can find small holes in worn gaskets.